Switching

Ok so I have a question about back to back VPC configuration.I have a back to back VPC from core to agg layer so that I have 2 logical switches in my path.However I am seeing an issue on the agg layer.  Traffic is traversing the VPC peerlink instead ...

Hi Anyone encountered reboot of 4500 switch after changinfg the Vtp domain name?Thanks in advance!

HI to all ,we have modem: with no RF problem   the modem access to the internet durning 3-4 min then we lost conncetivty (ping ) to the cpe mac and we see this error from the log :%UBR10000-3-BPI_ENFORCE: Blocking CPE=6c2e.85fd.3d66 CM=6c2e.85fd.3d64...

Hi All,By mistake, I have removed the passwords under line con 0 and line vty 0 4.After I signed out I realized that I can't access (telnet). It's always giving me this message " Password required, but none set".As I've also removed the password unde...

I am a programmer with a small company so I also have to wear the hat of systems admin, helpdesk, and network engineer.  I know enough about networking to be dangerous so if you will take the time to answer please put it in simple language as I don't...

        It was unclear to me from the CIsco VPC doc on whether a VPC (going to 2 separate 2Ks) will aggregate both links, and how does the process work for load balancing.   

Hi, i would like to configure a Trunk with all VLANs between a Cisco Catalyst 3650 an a DLINK DES-7210.On the DLINK is the def. GW via VRRP defined.Now i get the following Error:%ARP-4-DUPADDR: Duplicate address 172.28.72.1 on interface VLAN 72 port ...

hi all ,i have 192.168.2.0./24lan1--------asa1--------inteernet--------asa2------lan2192.168.0.0/24vpn ikev1 is upand lan1 can see lan2======================im sure that i put the remnote lan  of asa1 to "any"but only the traffic to lan2 is being go ...

How IP addresses are found?I just wanna know how did people came to know that they need an IP address to assign to network devices?Please don't mind my question is too small or looks silly.Thanks in advance.Regards, Chandu       

i have recently been tasked to redesign our LAN, its has been one broadcast 192.168.16.0 subnetted 255.255.248.0. may you kindly assist on how to vlan the network that will have about 400 workstations in 8 departments, 105 mitel ip phones, 60 servers...

Hi,we get network issues, if one of our employees build a loop on a desktop switch in his/her office.My test enviroment looks like this.Switch A is a Cisco 4500 with SUP7 and IOS Version 03.03.00.SG. Switch B is an unconfigured Netgear GS108T Desktop...